I still use socketed PDIP and program the uC via a shield using a Uno for my programmer. I certainly have time up my sleeve to get boards made for this, but the requirement is so simple, and since I have some 1" square perfboards that will do the job splendidly, I doubt I'll bother.

Geoff

"There is no problem so bad you can't make it worse" - retired astronaut Chris Hadfield

That being the case - I might be able to treble your order if that's okay. I'll PM you, but I can see these being very handy so would be interested in grabbing 40, or at least getting 40 made if you'd prefer not to have to worry about logistics.

Cheers ! Geoff

"There is no problem so bad you can't make it worse" - retired astronaut Chris Hadfield

I've been having quite a bit of fun with this ATTiny charlieplexing. Aside from the KITT Larson scanner thing, most recently have made a little EMF detector (originally showcased here for Arduino)

With apologies for the lame iPad photo quality, here's that one constructed, and another take on the 20 LEDs, arranged in a square which runs a sketch that loops around changing direction every 0.5 to 5sec.

Strykeroz, I know this thread is sorta old-ish but I wanted to thank you for your Larson code. I borrowed it and modified it for a 40-led circuit.The 40 leds are my cars 3rd taillight. I will program this to be a normal brakelight but when the car is stopped, they will start scanning back and forth.

I'm overdue for an update here too I guess. Since last posting I've had two versions of the circuitboard made up at Seeed. The first was to prove that my new EagleCAD skills actually translated okay to the real world. When it came back fine I've moved to the smaller 50x31mm board in the DP sick-of-beige PCB size which is far more compact, and I added a footprint for a 2.1mm DC jack sharing the space of one of the two screw terminals.

The idea is these boards will daisy-chain together for power with the end board in a chain having a wall wart plugged in via the 2.1mm jack. Each is standalone with a diode for polarity protection. At the bottom are two groups of 0.1mm spaced terminals for the string of LEDs to connect to, via a row of holes for strain relief. The larger hole at the top centre takes a curtain hook or ring, to hold it to a curtain rail on the inside of a window.

In the attached photos you'll see two of the boards populated along with the front and back view. In the group shot the board at the upper right is the v0.1 first attempt for scale.

In coming weeks I'm going to make up these first 10 to get a look at how the massed effect appears. Once that's done I'll be ordering a batch of 50 more in black to complete the job. I'm not looking forward too much to soldering 1200 white LEDs...but it appears we do suffer for our art XD